Creating a hyperlink on a PDF via XFRX.

I'm reporting to PDF using XFRX. I need to create a hyperlink to an internet URL.

The method XFRX uses for this is via a string in the Comments field of a report expression, so for example if I add a report expression with value = "Click Here" and put this in the comments:

#UR A HREF="https://www.rte.ie" https://tinyurl.com/yfzyu2s9

Then the created PDF will have a clickable "Click Here" link to that site. However I need to take the URL from a table field, i.e. not a static string, but I can't get it to work. I've tried:

#UR A HREF=#+mytable.myfield #UR A HREF=mytable.myfield #UR A HREF=eval(mytable.myfield)

Has anyone ever done this ?